#121740#121740

#121740 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.077 H 273.4°. Best body text is #FFFFFF at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#121740
RGB	rgb(18, 23, 64)
HSL	hsl(233, 56%, 16%)
HSV	hsv(233, 72%, 25%)
CMYK	cmyk(71.9%, 64.1%, 0%, 74.9%)
CIE-LAB	lab(9.89, 13.30, -26.92)
CIE-LCH	lch(9.89, 30.03, 296.30°)
OKLab	oklab(22.84% 0.0045 -0.0774)
OKLCH	oklch(22.84% 0.078 273.4)
XYZ	xyz(1.4810, 1.1114, 4.9860)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121740 #403B12

analogous

#122E40 #121740 #241240

triadic

#121740 #401217 #174012

tetradic

#121740 #40122E #403B12 #124024

square

#121740 #40122E #403B12 #124024

split-complementary

#121740 #402412 #2E4012

monochromatic

#070918 #070918 #121740 #1F2870 #2D39A0

Accessibility & contrast

On white

17.18

#121740 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#121740 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121740

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121740	#FFFFFF	#000000	##FFFFFF
##121740	1.00	17.18	1.22	17.18
#FFFFFF	17.18	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D41

Deuteranopia (green-blind)

#00193F

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121740;
/* rgb */ color: rgb(18, 23, 64);
/* oklch */ color: oklch(22.8% 0.077 273.4);

Tailwind

colors: {
  custom: {
    50: '#565375',
    500: '#121740',
    950: '#000000',
  },
}

SCSS

$custom: #121740;
$custom-light: #565375;
$custom-dark: #000000;

JSON

{
  "hex": "#121740",
  "rgb": {
    "r": 18,
    "g": 23,
    "b": 64
  },
  "hsl": {
    "h": 233.478,
    "s": 56.098,
    "l": 16.078
  },
  "oklch": {
    "l": 0.22836,
    "c": 0.0775,
    "h": 273.4
  },
  "luminance": 0.01112
}

Semantic roles & 50–950 ramp

primary

#121740

secondary

#797235

accent

#CF48DF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #121740

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →